Los Angeles is finally extending its transit system to the tony streets of Beverly Hills, announcing on Thursday that a 4-mile extension of the D Line subway opens on May 8.
Mostly. This is because, theoretically, we could still save the ISS and move it into higher orbit. NASA has calculated that propelling the station more than 640 kilometers above Earth would keep it alive for 100 years—and also require at least 18.9 metric tons of propellant. That’s roughly 2,000 airline carry-ons. A thousand years would require at least 36 metric tons. If that doesn’t seem like very much, consider the fact that, right now, no vehicle can transport that amount of gas to the station. The still-in-development SpaceX megarocket Starship might be able to haul a significant percentage, but it would struggle to dock with the station, according to the space agency’s estimations.
。关于这个话题，Line官方版本下载提供了深入分析
Almost a year ago, OPEC+ brushed aside warnings of a global supply surplus and chose to increase oil production. History seems about to repeat.，推荐阅读旺商聊官方下载获取更多信息
中国企业的研发投入绝对值，如果放在全球范围看，也是不可忽视的存在。根据《2025 欧盟工业企业研发投入记分牌》（The 2025EU Industrial R&D InvestmentScoreboard），全球研发投入前2000 家企业（以2024 年数据为准），最低入围门槛是6336 万欧元（约合5.22 亿元人民币），共有526家中国企业入围。。51吃瓜对此有专业解读